linux-kernel - Re: tracking memory usage/leak in "inactive" field in /proc/meminfo?

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Message-Id: <20100212170248.73B8.A69D9226@jp.fujitsu.com>
Date:	Fri, 12 Feb 2010 17:04:06 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	"Chris Friesen" <cfriesen@...tel.com>
Cc:	kosaki.motohiro@...fujitsu.com,
	Minchan Kim <minchan.kim@...il.com>,
	Rik van Riel <riel@...hat.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-mm@...ck.org, Balbir Singh <balbir@...ux.vnet.ibm.com>
Subject: Re: tracking memory usage/leak in "inactive" field in /proc/meminfo?

>   backtrace:
>     [<ffffffff8061c162>] kmemleak_alloc_page+0x1eb/0x380
>     [<ffffffff80276ae8>] __pagevec_lru_add_active+0xb6/0x104
>     [<ffffffff80276b85>] lru_cache_add_active+0x4f/0x53
>     [<ffffffff8027d182>] do_wp_page+0x355/0x6f6
>     [<ffffffff8027eef1>] handle_mm_fault+0x62b/0x77c
>     [<ffffffff80632557>] do_page_fault+0x3c7/0xba0
>     [<ffffffff8062fb79>] error_exit+0x0/0x51
>     [<ffffffffffffffff>] 0xffffffffffffffff
> 
> and
> 
>   backtrace:
>     [<ffffffff8061c162>] kmemleak_alloc_page+0x1eb/0x380
>     [<ffffffff80276ae8>] __pagevec_lru_add_active+0xb6/0x104
>     [<ffffffff80276b85>] lru_cache_add_active+0x4f/0x53
>     [<ffffffff8027eddc>] handle_mm_fault+0x516/0x77c
>     [<ffffffff8027f180>] get_user_pages+0x13e/0x462
>     [<ffffffff802a2f65>] get_arg_page+0x6a/0xca
>     [<ffffffff802a30bf>] copy_strings+0xfa/0x1d4
>     [<ffffffff802a31c7>] copy_strings_kernel+0x2e/0x43
>     [<ffffffff802d33fb>] compat_do_execve+0x1fa/0x2fd
>     [<ffffffff8021e405>] sys32_execve+0x44/0x62
>     [<ffffffff8021def5>] ia32_ptregs_common+0x25/0x50
>     [<ffffffffffffffff>] 0xffffffffffffffff
> 
> I'll dig into them further, but do either of these look like known issues?

no known issue.
AFAIK, 2.6.27 - 2.6.33 don't have such problem.


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